Circuit closer



March 3, 193,1. A. DOLGIN 7 1,795,251

CIRCUIT CLQSER Filed Oct. 24, 1928 3 m is 24 5 INVENTOR- ATTORNEY Patented Mar. 3, 1931 i M UNITED STATES PATENT OFFICE AARON DOLGIN, OF TOLEDO, OHIO CIRCUIT CLOSER Application filed October 24, 1928. Serial No. 314,761.

This invention relates to improvements in Mounted upon an arbor 24 of the time circuit closers and has for an object the pro mechanism is a rotatable and slidable gear vision of a time controlled circuit closer by 25 which is engaged and driven by a pinion means of which a circuit may be opened and 26 operated by the time mechanism referred closed at predetermined periods, the invento. Independently rotatable upon the arbor 55 tion being especially adapted for use as an 24 is a cam 27 which is carried by a sleeve 28 automobile accessory to control the parking and secured to this sleeve is an indicator or li ht pointer 29. The cam 27 includes a high por- More specifically stated, the invention protlon 30 and a low portion 31 which are adaptvides a time controlled switch which may be ed to be engaged by a finger 32 which e:-: 60 set to close a circuit through the parking tends rOIn the gear25. This gear is engaged lamp of an automobile at a predetermined y a p ng arm 33, which has one end anhour, so that the lamp will be illuminated ed as at 34 while its opposite end 35 is for a given period and will thereafter be apted to engage an extension 36 of the automatically extinguished. SWltCh arm 6v lVith the above and other objects in view, W t e finger 32 which is rotated by the the invention further includes the following g travels 0V6! the high portion novel features and details of construction, to of the h the Spring f 33 Win h@ be hereinafter more described ilh pressed inward SO as t0 move the SWltCll 211111 20 tra ted in the accompanying drawings and 20 agalnst the action 0f the spring t0 open i t d t i th d d l i the circuit so that the parking light or other I th d i electric element connected in the circuit will Figure 1 is a front elevation of the invenbe ehtlhgulshei However, when the finger ti ith a ti b k away t more 32 rides upon the low portion 31 of the cam 25 l l ill t at th same the switch arm 20 will be moved pivotally Figure 2 is a diametrical section. p he clrcult- Referring to the drawings in detail where- Assmmng that the ger 32 1s engaged in like haracters of reference denote -re uponthe higl1 porti0n Of the Cain and the Cll'- gpgnding arts the reference haracter 0111i? 18 017811 lll ()lt'lOl to set the SVllTCll the 0 i di t a h i hi h i d t d t indicator arm 29 is moved to the hour on the close the switch mechanism andatime mecha- (hill 13 at which the p is e g ted. is1n the latter being of the ordinary charm} TlllS IHQYHIIGH; Of the lIKllCiltOl arm ter and therefore not illustrated in full. This flccmnifllshod y means hi 37 which time mechanism includes a minute hand 11 i j by e 'e he 01 ring 15. The cam 35 and an hour hand 12 which travels around a 2'1 will then be positioned so that the finger dial 13 and these hands are enclosed between 39 will ride over the low part of the cam and thi di l d a l 14 hi h i i d b a permit the spring to close the switch when frame ring 15, the latter being mounted the. desired llOllI 1S reached. The finger 32 for rotation. will ride over this low portion of the cam 27 4e Mounted within the housing is a post 16 and the circuit will remain closed during this having means 17 at one end for permanent t me. However, w en the finger 32 reaches connection in an electric circuit, a portion of the high portion ofthe cam the spring arm one of the conductors of the circuit being in 33 will be depressed and the switch arm 20 r dicated at 18. Pivotally mounted upon the actuated to open the circuit. post 16 as shown at 19 is a switch arm 20 and y posl ionlng the lndlcator arm 29 oneone end of this switch arm is adapted to enhalf or onequarter hour between the hours gage a contact 21 to which is connected a 0011- marked on the dial 13, divisions of the hour ductor 22. The switch arm 20 is yieldingly may be obtained and the switch operated held engaged with the contact 21 by means of at these periods. 59 a pring 23, The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is here in reserved to make such changes as properly fall within the scope of the appended claim. 5 Having described the invention what is claimed is In a time, controlled circuit closer, a housing having a rotatable frame and a lens carried by the frame to close the front of the housing, a pivotally mounted switch arm having permanent means for connection in an electric circuit, a contact connected in said circuit, spring means to yieldingly hold the arm engaged with the contact to close the cir suit, a time controlled slidingly mounted gear, spring means located in the pathof sliding movement of the gear to engage the switch arm and move the latter to open position, a rotatable'cam, means carried by the gear to 2 engage the cam to control the sliding position of the gear, a pointer located adjacent the lens and fast with the rotatable cam, and a finger carried by the frame to engage the pointer and regulate the rotary position as of the cam when the frame is manually rotated.

In testimony whereof I afiiX my signature AARON DOLGIN. 

